Which of the following is an accurate statement about the Younger Dryas?
A. It occurred approximately 100,000 years ago.
B. It lasted approximately 20 years.
C. Temperatures were relatively warm in the northern hemisphere.
D. It was likely caused by melting ice sheets.
Answer: D
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Which direction does a table push a book resting on it?
A) up B) left C) right D) down
Which item is not considered to have a basic pH?
a. baking soda b. household ammonia c. black coffee d. seawater e. bleach
A probability forecast that calls for a "40 percent chance of rain" means that:a
there is a 40 percent chance that it will not rain within the forecast area. b. there is a 40 percent chance that any random place in the forecast area will receive measurable rain. c. it will rain on 40 percent of the forecast area. d. it will rain during 40 percent of the time over the forecast area.
Volcanic ash from recent eruptions of Aleutian volcanoes has posed a threat to air travel.
Answer the following statement true (T) or false (F)